mirror of https://github.com/tailix/kernel.git
Common code for interrupt handlers
This commit is contained in:
Braiden Vasco
parent
be7b16afc0
commit
84fdb622b8
|
|
@ -1,78 +1,40 @@
|
|||
#include "config.h"
|
||||
|
||||
%include "interrupt.asm"
|
||||
|
||||
[EXTERN exception_handler]
|
||||
|
||||
%macro EXCEPTION_NOERRCODE 1
|
||||
[GLOBAL exception_%1]
|
||||
exception_%1:
|
||||
cli
|
||||
push byte 0
|
||||
push byte %1
|
||||
jmp exception_common_stub
|
||||
%endmacro
|
||||
INTERRUPT_NOERRCODE 0 ; #DE - Divide Error Exception
|
||||
INTERRUPT_NOERRCODE 1 ; #DB - Debug Exception
|
||||
INTERRUPT_NOERRCODE 2 ; NMI - Non-maskable interrupt
|
||||
INTERRUPT_NOERRCODE 3 ; #BP - Breakpoint Exception
|
||||
INTERRUPT_NOERRCODE 4 ; #OF - Overflow Exception
|
||||
INTERRUPT_NOERRCODE 5 ; #BR - BOUND Range Exceeded Exception
|
||||
INTERRUPT_NOERRCODE 6 ; #UD - Invalid Opcode Exception
|
||||
INTERRUPT_NOERRCODE 7 ; #NM - Device Not Available Exception
|
||||
INTERRUPT_ERRCODE 8 ; #DF - Double Fault Exception
|
||||
INTERRUPT_NOERRCODE 9 ; Reserved - Coprocessor Segment Overrun
|
||||
INTERRUPT_ERRCODE 10 ; #TS - Invalid TSS Exception
|
||||
INTERRUPT_ERRCODE 11 ; #NP - Segment Not Present
|
||||
INTERRUPT_ERRCODE 12 ; #SS - Stack Fault Exception
|
||||
INTERRUPT_ERRCODE 13 ; #GP - General Protection Exception
|
||||
INTERRUPT_ERRCODE 14 ; #PF - Page-Fault Exception
|
||||
INTERRUPT_NOERRCODE 15 ; Reserved
|
||||
INTERRUPT_NOERRCODE 16 ; #MF - x87 FPU Floating-Point Error
|
||||
INTERRUPT_ERRCODE 17 ; #AC - Alignment Check Exception
|
||||
INTERRUPT_NOERRCODE 18 ; #MC - Machine-Check Exception
|
||||
INTERRUPT_NOERRCODE 19 ; #XF - SIMD Floating-Point Exception
|
||||
INTERRUPT_NOERRCODE 20 ; Reserved
|
||||
INTERRUPT_NOERRCODE 21 ; Reserved
|
||||
INTERRUPT_NOERRCODE 22 ; Reserved
|
||||
INTERRUPT_NOERRCODE 23 ; Reserved
|
||||
INTERRUPT_NOERRCODE 24 ; Reserved
|
||||
INTERRUPT_NOERRCODE 25 ; Reserved
|
||||
INTERRUPT_NOERRCODE 26 ; Reserved
|
||||
INTERRUPT_NOERRCODE 27 ; Reserved
|
||||
INTERRUPT_NOERRCODE 28 ; Reserved
|
||||
INTERRUPT_NOERRCODE 29 ; Reserved
|
||||
INTERRUPT_NOERRCODE 30 ; Reserved
|
||||
INTERRUPT_NOERRCODE 31 ; Reserved
|
||||
|
||||
%macro EXCEPTION_ERRCODE 1
|
||||
[GLOBAL exception_%1]
|
||||
exception_%1:
|
||||
cli
|
||||
push byte %1
|
||||
jmp exception_common_stub
|
||||
%endmacro
|
||||
|
||||
EXCEPTION_NOERRCODE 0 ; #DE - Divide Error Exception
|
||||
EXCEPTION_NOERRCODE 1 ; #DB - Debug Exception
|
||||
EXCEPTION_NOERRCODE 2 ; NMI - Non-maskable interrupt
|
||||
EXCEPTION_NOERRCODE 3 ; #BP - Breakpoint Exception
|
||||
EXCEPTION_NOERRCODE 4 ; #OF - Overflow Exception
|
||||
EXCEPTION_NOERRCODE 5 ; #BR - BOUND Range Exceeded Exception
|
||||
EXCEPTION_NOERRCODE 6 ; #UD - Invalid Opcode Exception
|
||||
EXCEPTION_NOERRCODE 7 ; #NM - Device Not Available Exception
|
||||
EXCEPTION_ERRCODE 8 ; #DF - Double Fault Exception
|
||||
EXCEPTION_NOERRCODE 9 ; Reserved - Coprocessor Segment Overrun
|
||||
EXCEPTION_ERRCODE 10 ; #TS - Invalid TSS Exception
|
||||
EXCEPTION_ERRCODE 11 ; #NP - Segment Not Present
|
||||
EXCEPTION_ERRCODE 12 ; #SS - Stack Fault Exception
|
||||
EXCEPTION_ERRCODE 13 ; #GP - General Protection Exception
|
||||
EXCEPTION_ERRCODE 14 ; #PF - Page-Fault Exception
|
||||
EXCEPTION_NOERRCODE 15 ; Reserved
|
||||
EXCEPTION_NOERRCODE 16 ; #MF - x87 FPU Floating-Point Error
|
||||
EXCEPTION_ERRCODE 17 ; #AC - Alignment Check Exception
|
||||
EXCEPTION_NOERRCODE 18 ; #MC - Machine-Check Exception
|
||||
EXCEPTION_NOERRCODE 19 ; #XF - SIMD Floating-Point Exception
|
||||
EXCEPTION_NOERRCODE 20 ; Reserved
|
||||
EXCEPTION_NOERRCODE 21 ; Reserved
|
||||
EXCEPTION_NOERRCODE 22 ; Reserved
|
||||
EXCEPTION_NOERRCODE 23 ; Reserved
|
||||
EXCEPTION_NOERRCODE 24 ; Reserved
|
||||
EXCEPTION_NOERRCODE 25 ; Reserved
|
||||
EXCEPTION_NOERRCODE 26 ; Reserved
|
||||
EXCEPTION_NOERRCODE 27 ; Reserved
|
||||
EXCEPTION_NOERRCODE 28 ; Reserved
|
||||
EXCEPTION_NOERRCODE 29 ; Reserved
|
||||
EXCEPTION_NOERRCODE 30 ; Reserved
|
||||
EXCEPTION_NOERRCODE 31 ; Reserved
|
||||
|
||||
exception_common_stub:
|
||||
pusha ; Pushes edi,esi,ebp,esp,ebx,edx,ecx,eax
|
||||
|
||||
mov ax, ds ; Lower 16-bits of eax = ds.
|
||||
push eax ; save the data segment descriptor
|
||||
|
||||
mov ax, GDT_KERNEL_DS_SELECTOR
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
call exception_handler
|
||||
|
||||
pop eax ; reload the original data segment descriptor
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
popa ; Pops edi,esi,ebp...
|
||||
add esp, 8 ; Cleans up the pushed error code and pushed ISR number
|
||||
sti
|
||||
iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP
|
||||
INTERRUPT_COMMON exception_handler, GDT_KERNEL_DS_SELECTOR
|
||||
|
|
|
|||
|
|
@ -1,37 +1,37 @@
|
|||
#ifndef KERNELMQ_INCLUDED_EXCEPTION
|
||||
#define KERNELMQ_INCLUDED_EXCEPTION 1
|
||||
|
||||
void exception_0();
|
||||
void exception_1();
|
||||
void exception_2();
|
||||
void exception_3();
|
||||
void exception_4();
|
||||
void exception_5();
|
||||
void exception_6();
|
||||
void exception_7();
|
||||
void exception_8();
|
||||
void exception_9();
|
||||
void exception_10();
|
||||
void exception_11();
|
||||
void exception_12();
|
||||
void exception_13();
|
||||
void exception_14();
|
||||
void exception_15();
|
||||
void exception_16();
|
||||
void exception_17();
|
||||
void exception_18();
|
||||
void exception_19();
|
||||
void exception_20();
|
||||
void exception_21();
|
||||
void exception_22();
|
||||
void exception_23();
|
||||
void exception_24();
|
||||
void exception_25();
|
||||
void exception_26();
|
||||
void exception_27();
|
||||
void exception_28();
|
||||
void exception_29();
|
||||
void exception_30();
|
||||
void exception_31();
|
||||
void interrupt_0();
|
||||
void interrupt_1();
|
||||
void interrupt_2();
|
||||
void interrupt_3();
|
||||
void interrupt_4();
|
||||
void interrupt_5();
|
||||
void interrupt_6();
|
||||
void interrupt_7();
|
||||
void interrupt_8();
|
||||
void interrupt_9();
|
||||
void interrupt_10();
|
||||
void interrupt_11();
|
||||
void interrupt_12();
|
||||
void interrupt_13();
|
||||
void interrupt_14();
|
||||
void interrupt_15();
|
||||
void interrupt_16();
|
||||
void interrupt_17();
|
||||
void interrupt_18();
|
||||
void interrupt_19();
|
||||
void interrupt_20();
|
||||
void interrupt_21();
|
||||
void interrupt_22();
|
||||
void interrupt_23();
|
||||
void interrupt_24();
|
||||
void interrupt_25();
|
||||
void interrupt_26();
|
||||
void interrupt_27();
|
||||
void interrupt_28();
|
||||
void interrupt_29();
|
||||
void interrupt_30();
|
||||
void interrupt_31();
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -1,55 +1,25 @@
|
|||
#include "config.h"
|
||||
|
||||
%include "interrupt.asm"
|
||||
|
||||
[EXTERN hwint_handler]
|
||||
|
||||
%macro HWINT 2
|
||||
[GLOBAL hwint_%1]
|
||||
hwint_%1:
|
||||
cli
|
||||
push byte 0
|
||||
push byte %2
|
||||
jmp hwint_common_stub
|
||||
%endmacro
|
||||
INTERRUPT_NOERRCODE 32 ; Programmable Interval Timer
|
||||
INTERRUPT_NOERRCODE 33 ; Keyboard
|
||||
INTERRUPT_NOERRCODE 34 ; Slave PIC
|
||||
INTERRUPT_NOERRCODE 35 ; COM 2/4
|
||||
INTERRUPT_NOERRCODE 36 ; COM 1/3
|
||||
INTERRUPT_NOERRCODE 37 ; LPT 2
|
||||
INTERRUPT_NOERRCODE 38 ; Floppy Drive Controller
|
||||
INTERRUPT_NOERRCODE 39 ; LPT 1
|
||||
|
||||
HWINT 0, 32 ; Programmable Interval Timer
|
||||
HWINT 1, 33 ; Keyboard
|
||||
HWINT 2, 34 ; Slave PIC
|
||||
HWINT 3, 35 ; COM 2/4
|
||||
HWINT 4, 36 ; COM 1/3
|
||||
HWINT 5, 37 ; LPT 2
|
||||
HWINT 6, 38 ; Floppy Drive Controller
|
||||
HWINT 7, 39 ; LPT 1
|
||||
INTERRUPT_NOERRCODE 40 ; Real Time Clock
|
||||
INTERRUPT_NOERRCODE 41 ; Master PIC
|
||||
INTERRUPT_NOERRCODE 42 ; Reserved
|
||||
INTERRUPT_NOERRCODE 43 ; Reserved
|
||||
INTERRUPT_NOERRCODE 44 ; Reserved
|
||||
INTERRUPT_NOERRCODE 45 ; Coprocessor exception
|
||||
INTERRUPT_NOERRCODE 46 ; Hard Drive Controller
|
||||
INTERRUPT_NOERRCODE 47 ; Reserved
|
||||
|
||||
HWINT 8, 40 ; Real Time Clock
|
||||
HWINT 9, 41 ; Master PIC
|
||||
HWINT 10, 42 ; Reserved
|
||||
HWINT 11, 43 ; Reserved
|
||||
HWINT 12, 44 ; Reserved
|
||||
HWINT 13, 45 ; Coprocessor exception
|
||||
HWINT 14, 46 ; Hard Drive Controller
|
||||
HWINT 15, 47 ; Reserved
|
||||
|
||||
hwint_common_stub:
|
||||
pusha ; Pushes edi,esi,ebp,esp,ebx,edx,ecx,eax
|
||||
|
||||
mov ax, ds ; Lower 16-bits of eax = ds.
|
||||
push eax ; save the data segment descriptor
|
||||
|
||||
mov ax, GDT_KERNEL_DS_SELECTOR
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
call hwint_handler
|
||||
|
||||
pop eax ; reload the original data segment descriptor
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
popa ; Pops edi,esi,ebp...
|
||||
add esp, 8 ; Cleans up the pushed error code and pushed ISR number
|
||||
sti
|
||||
iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP
|
||||
INTERRUPT_COMMON hwint_handler, GDT_KERNEL_DS_SELECTOR
|
||||
|
|
|
|||
32
arch/hwint.h
32
arch/hwint.h
|
|
@ -5,21 +5,21 @@ typedef void(*hwint_handler_t)();
|
|||
|
||||
void hwint_register_handler(unsigned int int_no, hwint_handler_t handler);
|
||||
|
||||
void hwint_0();
|
||||
void hwint_1();
|
||||
void hwint_2();
|
||||
void hwint_3();
|
||||
void hwint_4();
|
||||
void hwint_5();
|
||||
void hwint_6();
|
||||
void hwint_7();
|
||||
void hwint_8();
|
||||
void hwint_9();
|
||||
void hwint_10();
|
||||
void hwint_11();
|
||||
void hwint_12();
|
||||
void hwint_13();
|
||||
void hwint_14();
|
||||
void hwint_15();
|
||||
void interrupt_32();
|
||||
void interrupt_33();
|
||||
void interrupt_34();
|
||||
void interrupt_35();
|
||||
void interrupt_36();
|
||||
void interrupt_37();
|
||||
void interrupt_38();
|
||||
void interrupt_39();
|
||||
void interrupt_40();
|
||||
void interrupt_41();
|
||||
void interrupt_42();
|
||||
void interrupt_43();
|
||||
void interrupt_44();
|
||||
void interrupt_45();
|
||||
void interrupt_46();
|
||||
void interrupt_47();
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -0,0 +1,43 @@
|
|||
%macro INTERRUPT_NOERRCODE 1
|
||||
[GLOBAL interrupt_%1]
|
||||
interrupt_%1:
|
||||
cli
|
||||
push byte 0
|
||||
push byte %1
|
||||
jmp interrupt_common
|
||||
%endmacro
|
||||
|
||||
%macro INTERRUPT_ERRCODE 1
|
||||
[GLOBAL interrupt_%1]
|
||||
interrupt_%1:
|
||||
cli
|
||||
push byte %1
|
||||
jmp interrupt_common
|
||||
%endmacro
|
||||
|
||||
%macro INTERRUPT_COMMON 2
|
||||
interrupt_common:
|
||||
pusha ; Pushes edi,esi,ebp,esp,ebx,edx,ecx,eax
|
||||
|
||||
mov ax, ds ; Lower 16-bits of eax = ds.
|
||||
push eax ; save the data segment descriptor
|
||||
|
||||
mov ax, %2
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
call %1
|
||||
|
||||
pop eax ; reload the original data segment descriptor
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
popa ; Pops edi,esi,ebp...
|
||||
add esp, 8 ; Cleans up the pushed error code and pushed ISR number
|
||||
sti
|
||||
iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP
|
||||
%endmacro
|
||||
|
|
@ -80,57 +80,57 @@ void protected_initialize()
|
|||
|
||||
kmemset(idt_entries, 0, sizeof(idt_entries));
|
||||
|
||||
idt_set_gate(0, (unsigned int)exception_0, 0x08, 0x8E);
|
||||
idt_set_gate(1, (unsigned int)exception_1, 0x08, 0x8E);
|
||||
idt_set_gate(2, (unsigned int)exception_2, 0x08, 0x8E);
|
||||
idt_set_gate(3, (unsigned int)exception_3, 0x08, 0x8E);
|
||||
idt_set_gate(4, (unsigned int)exception_4, 0x08, 0x8E);
|
||||
idt_set_gate(5, (unsigned int)exception_5, 0x08, 0x8E);
|
||||
idt_set_gate(6, (unsigned int)exception_6, 0x08, 0x8E);
|
||||
idt_set_gate(7, (unsigned int)exception_7, 0x08, 0x8E);
|
||||
idt_set_gate(8, (unsigned int)exception_8, 0x08, 0x8E);
|
||||
idt_set_gate(9, (unsigned int)exception_9, 0x08, 0x8E);
|
||||
idt_set_gate(10, (unsigned int)exception_10, 0x08, 0x8E);
|
||||
idt_set_gate(11, (unsigned int)exception_11, 0x08, 0x8E);
|
||||
idt_set_gate(12, (unsigned int)exception_12, 0x08, 0x8E);
|
||||
idt_set_gate(13, (unsigned int)exception_13, 0x08, 0x8E);
|
||||
idt_set_gate(14, (unsigned int)exception_14, 0x08, 0x8E);
|
||||
idt_set_gate(15, (unsigned int)exception_15, 0x08, 0x8E);
|
||||
idt_set_gate(16, (unsigned int)exception_16, 0x08, 0x8E);
|
||||
idt_set_gate(17, (unsigned int)exception_17, 0x08, 0x8E);
|
||||
idt_set_gate(18, (unsigned int)exception_18, 0x08, 0x8E);
|
||||
idt_set_gate(19, (unsigned int)exception_19, 0x08, 0x8E);
|
||||
idt_set_gate(20, (unsigned int)exception_20, 0x08, 0x8E);
|
||||
idt_set_gate(21, (unsigned int)exception_21, 0x08, 0x8E);
|
||||
idt_set_gate(22, (unsigned int)exception_22, 0x08, 0x8E);
|
||||
idt_set_gate(23, (unsigned int)exception_23, 0x08, 0x8E);
|
||||
idt_set_gate(24, (unsigned int)exception_24, 0x08, 0x8E);
|
||||
idt_set_gate(25, (unsigned int)exception_25, 0x08, 0x8E);
|
||||
idt_set_gate(26, (unsigned int)exception_26, 0x08, 0x8E);
|
||||
idt_set_gate(27, (unsigned int)exception_27, 0x08, 0x8E);
|
||||
idt_set_gate(28, (unsigned int)exception_28, 0x08, 0x8E);
|
||||
idt_set_gate(29, (unsigned int)exception_29, 0x08, 0x8E);
|
||||
idt_set_gate(30, (unsigned int)exception_30, 0x08, 0x8E);
|
||||
idt_set_gate(31, (unsigned int)exception_31, 0x08, 0x8E);
|
||||
idt_set_gate(0, (unsigned int)interrupt_0, 0x08, 0x8E);
|
||||
idt_set_gate(1, (unsigned int)interrupt_1, 0x08, 0x8E);
|
||||
idt_set_gate(2, (unsigned int)interrupt_2, 0x08, 0x8E);
|
||||
idt_set_gate(3, (unsigned int)interrupt_3, 0x08, 0x8E);
|
||||
idt_set_gate(4, (unsigned int)interrupt_4, 0x08, 0x8E);
|
||||
idt_set_gate(5, (unsigned int)interrupt_5, 0x08, 0x8E);
|
||||
idt_set_gate(6, (unsigned int)interrupt_6, 0x08, 0x8E);
|
||||
idt_set_gate(7, (unsigned int)interrupt_7, 0x08, 0x8E);
|
||||
idt_set_gate(8, (unsigned int)interrupt_8, 0x08, 0x8E);
|
||||
idt_set_gate(9, (unsigned int)interrupt_9, 0x08, 0x8E);
|
||||
idt_set_gate(10, (unsigned int)interrupt_10, 0x08, 0x8E);
|
||||
idt_set_gate(11, (unsigned int)interrupt_11, 0x08, 0x8E);
|
||||
idt_set_gate(12, (unsigned int)interrupt_12, 0x08, 0x8E);
|
||||
idt_set_gate(13, (unsigned int)interrupt_13, 0x08, 0x8E);
|
||||
idt_set_gate(14, (unsigned int)interrupt_14, 0x08, 0x8E);
|
||||
idt_set_gate(15, (unsigned int)interrupt_15, 0x08, 0x8E);
|
||||
idt_set_gate(16, (unsigned int)interrupt_16, 0x08, 0x8E);
|
||||
idt_set_gate(17, (unsigned int)interrupt_17, 0x08, 0x8E);
|
||||
idt_set_gate(18, (unsigned int)interrupt_18, 0x08, 0x8E);
|
||||
idt_set_gate(19, (unsigned int)interrupt_19, 0x08, 0x8E);
|
||||
idt_set_gate(20, (unsigned int)interrupt_20, 0x08, 0x8E);
|
||||
idt_set_gate(21, (unsigned int)interrupt_21, 0x08, 0x8E);
|
||||
idt_set_gate(22, (unsigned int)interrupt_22, 0x08, 0x8E);
|
||||
idt_set_gate(23, (unsigned int)interrupt_23, 0x08, 0x8E);
|
||||
idt_set_gate(24, (unsigned int)interrupt_24, 0x08, 0x8E);
|
||||
idt_set_gate(25, (unsigned int)interrupt_25, 0x08, 0x8E);
|
||||
idt_set_gate(26, (unsigned int)interrupt_26, 0x08, 0x8E);
|
||||
idt_set_gate(27, (unsigned int)interrupt_27, 0x08, 0x8E);
|
||||
idt_set_gate(28, (unsigned int)interrupt_28, 0x08, 0x8E);
|
||||
idt_set_gate(29, (unsigned int)interrupt_29, 0x08, 0x8E);
|
||||
idt_set_gate(30, (unsigned int)interrupt_30, 0x08, 0x8E);
|
||||
idt_set_gate(31, (unsigned int)interrupt_31, 0x08, 0x8E);
|
||||
|
||||
idt_set_gate(32, (unsigned int)hwint_0, 0x08, 0x8E);
|
||||
idt_set_gate(33, (unsigned int)hwint_1, 0x08, 0x8E);
|
||||
idt_set_gate(34, (unsigned int)hwint_2, 0x08, 0x8E);
|
||||
idt_set_gate(35, (unsigned int)hwint_3, 0x08, 0x8E);
|
||||
idt_set_gate(36, (unsigned int)hwint_4, 0x08, 0x8E);
|
||||
idt_set_gate(37, (unsigned int)hwint_5, 0x08, 0x8E);
|
||||
idt_set_gate(38, (unsigned int)hwint_6, 0x08, 0x8E);
|
||||
idt_set_gate(39, (unsigned int)hwint_7, 0x08, 0x8E);
|
||||
idt_set_gate(40, (unsigned int)hwint_8, 0x08, 0x8E);
|
||||
idt_set_gate(41, (unsigned int)hwint_9, 0x08, 0x8E);
|
||||
idt_set_gate(42, (unsigned int)hwint_10, 0x08, 0x8E);
|
||||
idt_set_gate(43, (unsigned int)hwint_11, 0x08, 0x8E);
|
||||
idt_set_gate(44, (unsigned int)hwint_12, 0x08, 0x8E);
|
||||
idt_set_gate(45, (unsigned int)hwint_13, 0x08, 0x8E);
|
||||
idt_set_gate(46, (unsigned int)hwint_14, 0x08, 0x8E);
|
||||
idt_set_gate(47, (unsigned int)hwint_15, 0x08, 0x8E);
|
||||
idt_set_gate(32, (unsigned int)interrupt_32, 0x08, 0x8E);
|
||||
idt_set_gate(33, (unsigned int)interrupt_33, 0x08, 0x8E);
|
||||
idt_set_gate(34, (unsigned int)interrupt_34, 0x08, 0x8E);
|
||||
idt_set_gate(35, (unsigned int)interrupt_35, 0x08, 0x8E);
|
||||
idt_set_gate(36, (unsigned int)interrupt_36, 0x08, 0x8E);
|
||||
idt_set_gate(37, (unsigned int)interrupt_37, 0x08, 0x8E);
|
||||
idt_set_gate(38, (unsigned int)interrupt_38, 0x08, 0x8E);
|
||||
idt_set_gate(39, (unsigned int)interrupt_39, 0x08, 0x8E);
|
||||
idt_set_gate(40, (unsigned int)interrupt_40, 0x08, 0x8E);
|
||||
idt_set_gate(41, (unsigned int)interrupt_41, 0x08, 0x8E);
|
||||
idt_set_gate(42, (unsigned int)interrupt_42, 0x08, 0x8E);
|
||||
idt_set_gate(43, (unsigned int)interrupt_43, 0x08, 0x8E);
|
||||
idt_set_gate(44, (unsigned int)interrupt_44, 0x08, 0x8E);
|
||||
idt_set_gate(45, (unsigned int)interrupt_45, 0x08, 0x8E);
|
||||
idt_set_gate(46, (unsigned int)interrupt_46, 0x08, 0x8E);
|
||||
idt_set_gate(47, (unsigned int)interrupt_47, 0x08, 0x8E);
|
||||
|
||||
idt_set_gate(INT_SYSCALL, (unsigned int)syscall_gate, 0x08, 0x8E | 0x60);
|
||||
idt_set_gate(INT_SYSCALL, (unsigned int)interrupt_0x80, 0x08, 0x8E | 0x60);
|
||||
|
||||
logger_info("Load GDT.");
|
||||
|
||||
|
|
|
|||
|
|
@ -1,37 +1,9 @@
|
|||
#include "config.h"
|
||||
|
||||
%include "interrupt.asm"
|
||||
|
||||
[EXTERN syscall_handler]
|
||||
|
||||
[GLOBAL syscall_gate]
|
||||
INTERRUPT_NOERRCODE INT_SYSCALL
|
||||
|
||||
syscall_gate:
|
||||
cli
|
||||
|
||||
push byte 0
|
||||
push byte INT_SYSCALL
|
||||
|
||||
pusha ; Pushes edi,esi,ebp,esp,ebx,edx,ecx,eax
|
||||
|
||||
mov ax, ds ; Lower 16-bits of eax = ds.
|
||||
push eax ; save the data segment descriptor
|
||||
|
||||
mov ax, GDT_KERNEL_DS_SELECTOR
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
call syscall_handler
|
||||
|
||||
pop eax ; reload the original data segment descriptor
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
popa ; Pops edi,esi,ebp...
|
||||
|
||||
add esp, 8 ; Cleans up the pushed error code and pushed ISR number
|
||||
|
||||
sti
|
||||
iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP
|
||||
INTERRUPT_COMMON syscall_handler, GDT_KERNEL_DS_SELECTOR
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
#ifndef KERNELMQ_INCLUDED_SYSCALL
|
||||
#define KERNELMQ_INCLUDED_SYSCALL 1
|
||||
|
||||
void syscall_gate();
|
||||
void interrupt_0x80();
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue